198744231 has 8 divisors (see below), whose sum is σ = 302848384. Its totient is φ = 113568120.

The previous prime is 198744211. The next prime is 198744233. The reversal of 198744231 is 132447891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198744231 - 2⁶ = 198744167 is a prime.

It is a super-2 number, since 2×198744231² = 78998538711562722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198744231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198744233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4731985 + ... + 4732026.

It is an arithmetic number, because the mean of its divisors is an integer number (37856048).

Almost surely, 2^198744231 is an apocalyptic number.

198744231 is a deficient number, since it is larger than the sum of its proper divisors (104104153).

198744231 is an equidigital number, since it uses as much as digits as its factorization.

198744231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464021.

The product of its digits is 48384, while the sum is 39.

The square root of 198744231 is about 14097.6675730420. The cubic root of 198744231 is about 583.5770133662.

The spelling of 198744231 in words is "one hundred ninety-eight million, seven hundred forty-four thousand, two hundred thirty-one".